1.This imperial secret recipe has been handed down through generations. 2. His eldest boy is at school; the other is still at home.
这个宫廷秘方一直是祖祖辈辈传下来的。2。他的大儿子在上学，另一个还呆在家里。答案。
2.He is the eldest boy and the eldest child but one.
他是最大的男孩，也是除掉一个后最大的孩子。
3.Are you the eldest boy?
你是最年长的男孩吗？
4.That is some family, I'll say. Are you the eldest boy?
那的确是个大家庭。你在兄弟中最大吗？